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Archives For November 30, 1999

Kernel 3.12.1 released, Install / Upgrade in Ubuntu Linux Mint

Last updated: November 21, 2013

Linux Kernel 3.12.1

The latest Linux Kernel 3.12.1 has been released recently. If you’re using Kernel 3.12 series, here’s how to install or upgrade it in Ubuntu 13.10, Ubuntu 13.04, Ubuntu 12.04, Linux Mint and their derivatives.

Linux kernel 3.12.1 is a small release that contains mostly updated drivers (networking, USB and video), as well as an ALSA fix, and a few networking fixes for IPv4 and IPv6. In numbers, Linux kernel 3.12.1 changes 22 files, with 135 insertions and 50 deletions.

For details of this kernel release, see the official announcement.

Install / Upgrade Kernel 3.12.1:

The Ubuntu Kernel team has made the DEB packages for this kernel. We can download & install them by running commands (Ctrl+Alt+T) below one by one:

1. Download the Kernel DEBs:

For 32 bit system:

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12.1-trusty/linux-headers-3.12.1-031201-generic_3.12.1-031201.201311201654_i386.deb

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12.1-trusty/linux-headers-3.12.1-031201_3.12.1-031201.201311201654_all.deb

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12.1-trusty/linux-image-3.12.1-031201-generic_3.12.1-031201.201311201654_i386.deb

For 64 bit system:

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12.1-trusty/linux-headers-3.12.1-031201-generic_3.12.1-031201.201311201654_amd64.deb

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12.1-trusty/linux-headers-3.12.1-031201_3.12.1-031201.201311201654_all.deb

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12.1-trusty/linux-image-3.12.1-031201-generic_3.12.1-031201.201311201654_amd64.deb

2. Install the kernel DEB:

sudo dpkg -i linux-headers-3.12.1-*.deb linux-image-3.12.1-*.deb

Once done, restart your computer.

If for some reason this kernel does not work properly for you. Reboot and select to boot with previous kernel from Grub boot loader (Advance). Then remove Linux Kernel 3.12.1 via:

sudo apt-get purge linux-headers-3.12.1-* linux-image-3.12.1-*
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Linux Kernel 3.12 Released, Install it in Ubuntu & Linux Mint

Last updated: November 5, 2013

Linus Torvalds finally announced Linux Kernel 3.12. Here’re the new features and how to install / upgrade to Kernel 3.12 in Ubuntu 13.10, Ubuntu 12.04, Ubuntu 12.10 and Linux Mint.

Linus Torvalds wrote on the mailing list (read the announcement):

I was vacillating whether to do an rc8 or just cut the final 3.12, but
since the biggest reason to *not* do a final release was not so much
the state of the code, as simply the fact that I’ll be traveling with
very bad internet connection next week, I didn’t really want to delay
the release. Sure, we had a number of driver reverts, and there was an
annoying auto-NUMA memory corruption fix series, but none of it was
really worth delaying 3.12 for.

But the fact that I’m going to be (effectively) off-line next week
means that I’m *not* opening the merge window for 3.13 yet …

…

What’s New in Linux Kernel 3.12:

  • The Radeon open-source kernel graphics driver has improved Dynamic Power Management, but it won’t be until Linux 3.13 where Radeon DPM is enabled by default along with HDMI audio.
  • A brand new DRM/KMS driver in the form of the Snapdragon MSM driver written by Rob Clark to go along with his reverse-engineered Freedreno driver for Qualcomm Snapdragon/Adreno graphics.
  • Run-time GPU power management so NVIDIA Optimus systems can dynamically power on/off the secondary GPU.
  • Experimental DRM render nodes support done by David Herrmann over the summer.
  • AMD Berlin APU support as the first APU built upon AMD’s Heterogeneous System Architecture (HSA).
  • The EXT4 file-system now supports aggressive extent caching and better recovery capabilities.
  • Random F2FS, XFS, and Btrfs file-system improvements. This kernel does deliver on disk improvements.
  • zRAM has been promoted out of the staging area of the kernel. ZRAM supports a compressed block device in RAM to avoid paging to disk and is mostly of benefit for systems with limited amounts of system memory.
  • Various staging driver updates and sound driver work and other glorious work.

    • Install / Upgrade Linux Kernel 3.12

    The DEBs for Linux Kernel 3.12 has been made into kernel-ppa. Press Ctrl+Alt+T on keyboard to open terminal and follow the steps below to download and install them.

    1. Download DEBs for this kernel:

    For 32-bit Ubuntu, Linux Mint and alternatives run commands below one by one:

    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-saucy/linux-headers-3.12.0-031200-generic_3.12.0-031200.201311031935_i386.deb

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-saucy/linux-headers-3.12.0-031200_3.12.0-031200.201311031935_all.deb

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-saucy/linux-image-3.12.0-031200-generic_3.12.0-031200.201311031935_i386.deb

    For 64-bit Ubuntu, Linux Mint and alternatives run commands below one by one:

    wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-saucy/linux-headers-3.12.0-031200-generic_3.12.0-031200.201311031935_amd64.deb

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-saucy/linux-headers-3.12.0-031200_3.12.0-031200.201311031935_all.deb

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-saucy/linux-image-3.12.0-031200-generic_3.12.0-031200.201311031935_amd64.deb

    2. For both 32-bit & 64-bit install the Kernel via:

    sudo dpkg -i linux-headers-3.12.0-*.deb linux-image-3.12.0-*.deb

    Once installed, restart your computer and done.

    If for some reason the new kernel does not work properly, run command below to remove Linux Kernel 3.12:

    sudo apt-get purge linux-image-3.12.0-* linux-headers-3.12.0-*
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